Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration

Dmitrenko, Mariia; Zolotarev, Andrey; Plisko, Tatiana; Burts, Katsiaryna; Liamin, Vladislav; Bildyukevich, Alexandr; Ermakov, Sergey; Penkova, Anastasia

doi:10.3390/membranes10070153

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Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration

¹,

¹,

Alexandr Bildyukevich

²,

Sergey Ermakov

¹ and

Anastasia Penkova

^1,*

St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia

Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 Surganov Str., 220072 Minsk, Belarus

Author to whom correspondence should be addressed.

Membranes 2020, 10(7), 153; https://doi.org/10.3390/membranes10070153

Received: 24 June 2020 / Revised: 13 July 2020 / Accepted: 14 July 2020 / Published: 16 July 2020

(This article belongs to the Special Issue Progress in Manufacturing and Applications of Composite Membranes)

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Abstract

The aim of the study is to improve the performance of thin-film composite (TFC) membranes with a thin selective layer based on chitosan (CS) via different approaches by: (1) varying the concentration of the CS solution; (2) changing the porosity of substrates from polyacrylonitrile (PAN); (3) deposition of the additional ultrathin layers on the surface of the selective CS layer using interfacial polymerization and layer-by-layer assembly. The developed membranes were characterized by different methods of analyses (SEM and AFM, IR spectroscopy, measuring of water contact angles and porosity). The transport characteristics of the developed TFC membranes were studied in pervaporation separation of isopropanol/water mixtures. It was found that the application of the most porous PAN-4 substrate with combination of formation of an additional polyamide selective layer by interfacial polymerization on the surface of a dense selective CS layer with the subsequent layer-by-layer deposition of five bilayers of poly (sodium 4-styrenesulfonate)/CS polyelectrolyte pair led to the significant improvement of permeance and high selectivity for the entire concentration feed range. Thus, for TFC membrane on the PAN-4 substrate the optimal transport characteristics in pervaporation dehydration of isopropanol (12–90 wt.% water) were achieved: 0.22–1.30 kg/(m²h), 99.9 wt.% water in the permeate. View Full-Text

Keywords: thin-film composite membrane; interfacial polymerization; pervaporation

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MDPI and ACS Style

Dmitrenko, M.; Zolotarev, A.; Plisko, T.; Burts, K.; Liamin, V.; Bildyukevich, A.; Ermakov, S.; Penkova, A. Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration. Membranes 2020, 10, 153. https://doi.org/10.3390/membranes10070153

AMA Style

Dmitrenko M, Zolotarev A, Plisko T, Burts K, Liamin V, Bildyukevich A, Ermakov S, Penkova A. Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration. Membranes. 2020; 10(7):153. https://doi.org/10.3390/membranes10070153

Chicago/Turabian Style

Dmitrenko, Mariia, Andrey Zolotarev, Tatiana Plisko, Katsiaryna Burts, Vladislav Liamin, Alexandr Bildyukevich, Sergey Ermakov, and Anastasia Penkova. 2020. "Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration" Membranes 10, no. 7: 153. https://doi.org/10.3390/membranes10070153

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Effect of the Formation of Ultrathin Selective Layers on the Structure and Performance of Thin-Film Composite Chitosan/PAN Membranes for Pervaporation Dehydration

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